How cute. Mine love ice cubes too. Cold watermelon is great for them when it is really hot and humid like that. I just kept one in the frig when we had 100 degree days. I would cut it in half and give them half one day and half the next.

I have a fan set on a timer that starts up in the morning and turns off in the evening. On really hot days, I put ice in their water and also put frozen water bottles or those hard ice pack things that you put in coolers onto the floor of the coop. They like to stand on them or lean against them to keep cool. I can't wait until these hot days are over!